Heater



' Sept. 29, 1931. I i J, w, WHITE 1,825,433

HEATER Filed Jan. 7. 1929 2 Sheets-Sheet 1 Ign- Sept. 29, 1931. I wWHITE 1,825,433

HEATER Filed Jan. 7, 1929 2 Sheets-Sheet 2 Patented Sept.'29, 1931 UNTED AT S P TENT OFFICE JOHN WILLIAM WHITE, or-BUrFALo, NEW YORK HEATER.

Application filed lanuary 7, 1929. SerialNo. 330,733.

in a casing in such a manner that access thereto and cleaning of thepassages thereabout has also been difficult. The present inventionprovides a heater of this type in 20 which a plurality of independentlyremovable pipe sections are provided, a unique arrangement beingafforded to permit the independent removal of any selected pipe sectionfrom the other sections which may remain in their normal relation toeach other. Furthermore, this invention permits the convenient removalof the heat insulating casing from the pipe sections which it normallyencloses so that access is afforded servation, cleaning or removalof thesame. 1 Furthermore, the VElIlOllS. pipes, ducts,

fines and the like are arranged in heat trans fer relation to each otherto enhance the thermal efficiency of the, heater and to afford a simple,inexpensive, compact and commercially practical assembly permitting theready inspection, cleaning orreplacementof parts.

In the accompanying drawings, 1

Fig. 1 is central sectional View through a heater exemplifying thisinvention;

Fig. 2 is abroken section of the'casing and related parts with theformer in its raised position to afford access to the interior of theheater; 1 s

Fig. 3 is a section online 38 of Fig. l, certain portions of the headerbeing broken away to afford clarity of illustration;

50 Fig. 1 is a sectional detail of the central pipe elements forcleaning orreplacement. and ordinarlly the same have been installed tothe interior of the heater to permit ob;

portion of the upper header and the flue connection therewith; and pFig. 5 is a section on line 55 of Fig. 1, certain parts being brokenaway. Y

Referring to .the accompanying drawings,

and'more particularly to Fig. 1 thereof, it is evident that myimprovedheater may be provided with any suitable heating means 1 such as a gasburning apparatus having a plurality of jets which are fed through thegas pipe 2. v

Legs 3 at each side of heating means 1 support an annular member .5 ofinverted T section, which'has a horizontal flange 7 upon Y" which thelower edge of the side wall of a heat insulating casing 10 rests, anda-n upstanding annular flange 13 preferably is disposed in telescopingengagement with the.

bottom of the casing. The latter may be of any conventionalconstruction, for example having inner andouter sheet metal walls with asuitable heat non-conductor therebetween, and has a suitable top 12 ofsimilar construction. Annular member 5 forms the lower "part of askeleton frame located within the casing 10, being connected to an upperannular member 15 by a'plurality of vertically disposed elongate bolts21 thatare clamped to the members 15 and 5.

Located within the skeleton frame thus provided'are the fluid ducts 25which may be ,in the form of spiral pipes of comparatively high heatconductivity and: of 'material having little tendency to permit theformation of scale, aluminum, for example, being advantageous for. thispurpose. The spiral pipes 25 preferably are nested in concentricjuxtaposition, as shown in Fig. 1,

with their upper and lower ends connected to the upper and lower headers30 and 31 respectively. 'Each of these headersis provided withoutstanding branches which permit the convenient connection of the fluidducts thereto in such a manner that the attachment of the same to theheaders is facilitated and that ready access is permitted to theconnections for the removal of any of the spiral ducts. particularly thearrangement of the upper Fig. 3 shows more header 30 which is providedwith two branches 35 having their outer ends secured by means of asuitable lug and bolt connections 36 to the annular member 15. The endsof the adjoining spiral ducts preferably are disposed in the region ofthe opposite branches of the header so that alternate ducts may besecured to the same header branch; for this purpose I may providesuitable unions 37, as shown. Due to this arrangement suiflcient room isprovided be tween adjoining unions to permit the ready assembly of theparts or the removal of any selected one of the spiral ducts.

Fig. 5 discloses in detail the arrangement of the lower header 31 whichsimilarly carries spaced unions 37 upon each of its branches that areconnected to alternate pipe sections so that suflicient room ispermitted between each of the unions to permit the ready replacement ofany spiral duct. Similarly the branches of this header are secured bylug and bolt connections 36 to flange 7 A fluid return pipe 40 isconnected to a supply duct 42 and to a fluid inlet a3 which extendsinwardly to join one branch of the lower header 31, the bottom portionof casing 10 being broken away at this point to permit the pipe 43 toextend thcrethrough.

Figs. 3 and a show in detail the arrangement of the central portion ofthe upper header, the branches of which are provided with downwardlyextending continuations 47 which terminate in a heating chamber 50 thatmay form a super-heater, drier or the like. Chamber 50 is located in thecentral portion of the heater and is arranged within the innermost ofthe spiral ducts so that hot gases passing upwardly flow against thechamber, which acts as a baflle to direct the gases outwardly past thespiral ducts. The heated fluid passing downwardly through pipes 47 isreceived in chamber 50, flowing upwardly through the central verticallyextending passage 55 in the header. A fluid outlet pipe 57 forms acontinuation of this passage and preferably extends upwardly for aconsiderable distance in a vertical direction. The upper end of thispipe may be provided with suitable branches 59 which extend to the pointof fluid use, such as the radiators or the like. A flue 60 extendsdownwardly through an opening 1 in the top of the casing 10, this fluehaving a flange 62 that normally engages the lower face of the top ofthe casing adjoining this opening. The flue preferably encloses duct 57and extends upwardly beyond the same. A suitable annular collar 67 maybe arranged upon the casing 10 in sliding engagement with the flue sothat the latter forms a vertical guide to facilitate the raising of thecasing. Lugs 70 are pivota ly mounted upon the ring 15 in such a mannerthat they may be readily swung outwardly to engage and support the loweredge of the casing when the same is raised, as shown in Fig. 2, toafford access to the interior of the heater.

It is evident that a heat generator of this character is adapted to alarge number of uses, and while illustrated as being provided with a gasburning factor is obviously applicable to use with oil burners orvarious other heating means. Such a heater may be utilized to providehot water, vapor or steam for household heating or hot water forhousehold use. If desired, a plurality of these heaters may be providedso that under ordinary conditions of use only a certain number of thesame will be in operation, being run substantially at their individualmaximum capacities, thus permitting high thermal efflciency. Theincoming fluid enters the lower header 41 through pipe 43 passingupwardly through the spiral duct members 25 which are arranged toreceive heat from the burners with high efficiency. The heated fluid,for example steam, passes into the upper header and downwardly throughpipes 47 to the heating chamber 50 where its temperature is stillfurther raised; it then rises through passage 55 and pipe 57 to thebranches 59 which extend to the radiators or other points of use. Thefluid is there cooled and may be collected in any conventional mannerand returned to the pipe l0. Any loss of the fluid in the system iscompensated for by incoming fluid re ceived through pipe 42.

Due to the novel arrangement of the spiral ducts, convenient access tothe unions 37 is afforded; thus, if it is desired to remove any selectedone of the ducts, it is necessary only to remove the upper header and todetach the lower end of the selected duct from the lower header. Theother ducts continue to be secured to the heater 31 and thus remain insubstantially their normal assembled relation. Due to the arrangement ofthe casing 10 and the lugs 70 the former readily may be lifted and heldout of its normal position to permit access to the interior of theheater for inspection, cleaning, repair and the like.

Due to the provision of a large number of pipe convolutions of high heatconductivity, and due to the provision of the central heating chamber 50and the fluid outlet duct 57 and the flue 60 in heat transfer relationto each other, heat is conserved and a heater of this type may be highlyeflicient in use.

I claim:

1. A heater comprising heating means, a plurality of spiral ducts inmutually concentric juxtaposition, the adjoining ends of the ductsterminating in at least two separate regions, headers in each of saidregions, each of said headers providing outwardly extendingsubstantially straight Eli header sections, and connecting unionsbetween said duct ends and header sections, whereby the unions oneach'header section are spaced sufliciently to permit ready accessthereto and whereby any selected spiral fluid duct may be independentlyremoved.

2. A heater comprising heating means, a

plurality of spiral ducts arranged in mu ward in relation to said flueand pipe in order to aflord access to the ducts and their connections tothe headers.

3. A heater comprising heating means, a

plurality of spiral ducts arranged in mutually concentric juxtapositionabove the same, headers at the opposite ends of theducts, each of saidheaders having outwardly extending branches, detachable connectionsbetween the ducts and header branches, said connections securingadjoining duct sections to different branches whereby ready access tothe connections for each duct is permitted and whereby each duct may beindependently removable from the headers, a casing about the ducts, aflue extending upwardly from the top of the casing, a fluid outlet pipeconnected to the upper header, said flue and pipe being arranged inheattransfer relation to each other, said casing having an opening throughwhich the flue and pipe extend and being slidable upwardly in relationto the same to afford access to the fluid ducts.

4. A heater comprising heating means, a plurality of spiral ductsarranged in mutually concentric juxtaposition above the same, headers atthe upper and lower ends of the ducts, each of said headers havingoutwardly extending branches, detachable connections between the ductsand header branches, said connections securing adjoining duct sectionsto different branches whereby access to the connections for each duct ispermitted and whereby each duct may be independently removable from theheaders, a

casing about the ducts, a flue extending upwardly fromthe top of thecasing, a fluid outlet pipe connected to the upper header,

said flue and pipe being arranged in heat transfer relation to eachother, said casing having an opening through which the flue and pipeextend and being slidable upwardly in relation to the same to affordaccess to the fluid ducts, and means associated with the upper portionofthe ducts to support the lower edge of the casing in its raisedposition.

5. A heater comprising heating means, fluid piping thereabove, a heatinsulating casing having side walls surrounding the piping and providinga top thereabove, a flue and a fluid outlet pipe extending upwardlythrough the top of the casing in heat transfer relation to each other.

6. A heater comprising heating means, fluid piping thereabove, a heatinsulating casing having side walls surrounding-the piping and providinga top thereabove, a flue and a fluid outlet pipe extending upwardlythrough the top of the-casing in heat transfer relation to each other,said casing being slidable upward in relation to the 'flueand outletpipe to permit ready cleaning of the piping and the like.

7. A heater comprising heating means, fluid piping thereabove, a heatinsulating casing having side walls surrounding the pipingand providinga top thereabove, a flue and a fluid outlet pipe extending upwardlythrough the top of the casing in heat transfer relation to each other,said casing being slidable upward in relation to the flue and pipe topermit ready cleaning of the fluid piping and the like, and meanssupported adjoining the upper part of the piping and movable to supportthe lower edge of the casing in its raised position.

8. A heater comprising heating means, fluid piping thereabove, a heatinsulating casing having side walls surrounding the piping and providinga top thereabove, a flue and a fluid outlet pipe extending upwardlythrough the top of the casing in heat trans- 1 fer relation to eachother, said casing being slidable upward in relation to the flue andpipe to permit ready cleaning of the piping and the like, and a fluidinlet connected to the lower portion of the piping, said casing havingan opening at its lower edge through which the inlet extends.

9. A heater comprising heating means, a frame thereabove, fluid pipingwithin the frame, upper and lower headers connected to the piping andsupported by the frame, a heating insulating casing having side wallssurrounding the frame and piping and resting upon the former, saidcasing being slidable upwardly, and means upon the upper part of theframe movable outwardly to support the lower portion of the casing inits raised position. whereby ready access is provided to the piping.

Signed by me at Buffalo, New York, this 96th day of December. 1928.

JOHN WILLIAM WHITE.

